diff --git a/app/src/card/openCard.ts b/app/src/card/openCard.ts
index 990b9172c..aad6b723b 100644
--- a/app/src/card/openCard.ts
+++ b/app/src/card/openCard.ts
@@ -16,6 +16,7 @@ import {openFile} from "../editor/util";
 import {getDisplayName, movePathTo} from "../util/pathName";
 import {App} from "../index";
 import {resize} from "../protyle/util/resize";
+import {setStorageVal} from "../protyle/util/compatibility";
 
 export const genCardHTML = (options: {
     id: string,
@@ -123,6 +124,10 @@ export const bindCardEvent = (options: {
     id?: string,
     dialog?: Dialog,
 }) => {
+    if (window.siyuan.storage[Constants.LOCAL_FLASHCARD].fullscreen) {
+        fullscreen(options.element.querySelector(".card__main"),
+            options.element.querySelector('[data-type="fullscreen"]'));
+    }
     let index = 0;
     const editor = new Protyle(options.app, options.element.querySelector("[data-type='render']") as HTMLElement, {
         blockId: "",
@@ -204,6 +209,8 @@ export const bindCardEvent = (options: {
                 fullscreen(options.element.querySelector(".card__main"),
                     options.element.querySelector('[data-type="fullscreen"]'));
                 resize(editor.protyle);
+                window.siyuan.storage[Constants.LOCAL_FLASHCARD].fullscreen = !window.siyuan.storage[Constants.LOCAL_FLASHCARD].fullscreen
+                setStorageVal(Constants.LOCAL_FLASHCARD,  window.siyuan.storage[Constants.LOCAL_FLASHCARD]);
                 event.stopPropagation();
                 event.preventDefault();
                 return;
diff --git a/app/src/constants.ts b/app/src/constants.ts
index 8ac462424..eb53abb91 100644
--- a/app/src/constants.ts
+++ b/app/src/constants.ts
@@ -97,6 +97,7 @@ export abstract class Constants {
     public static readonly LOCAL_LAYOUTS = "local-layouts";
     public static readonly LOCAL_AI = "local-ai";
     public static readonly LOCAL_PLUGINTOPUNPIN = "local-plugintopunpin";
+    public static readonly LOCAL_FLASHCARD = "local-flashcard";
 
     // timeout
     public static readonly TIMEOUT_DBLCLICK = 190;
diff --git a/app/src/protyle/util/compatibility.ts b/app/src/protyle/util/compatibility.ts
index 494b8d43e..2c6926a0f 100644
--- a/app/src/protyle/util/compatibility.ts
+++ b/app/src/protyle/util/compatibility.ts
@@ -181,6 +181,9 @@ export const getLocalStorage = (cb: () => void) => {
         defaultStorage[Constants.LOCAL_LAYOUTS] = [];   // {name: "", layout:{}}
         defaultStorage[Constants.LOCAL_AI] = [];   // {name: "", memo: ""}
         defaultStorage[Constants.LOCAL_PLUGINTOPUNPIN] = [];
+        defaultStorage[Constants.LOCAL_FLASHCARD] = {
+            fullscreen: false
+        };
         defaultStorage[Constants.LOCAL_BAZAAR] = {
             theme: "0",
             template: "0",
@@ -235,7 +238,7 @@ export const getLocalStorage = (cb: () => void) => {
         [Constants.LOCAL_EXPORTIMG, Constants.LOCAL_SEARCHKEYS, Constants.LOCAL_PDFTHEME, Constants.LOCAL_BAZAAR,
             Constants.LOCAL_EXPORTWORD, Constants.LOCAL_EXPORTPDF, Constants.LOCAL_DOCINFO, Constants.LOCAL_FONTSTYLES,
             Constants.LOCAL_SEARCHDATA, Constants.LOCAL_ZOOM, Constants.LOCAL_LAYOUTS, Constants.LOCAL_AI,
-            Constants.LOCAL_PLUGINTOPUNPIN, Constants.LOCAL_SEARCHASSET].forEach((key) => {
+            Constants.LOCAL_PLUGINTOPUNPIN, Constants.LOCAL_SEARCHASSET, Constants.LOCAL_FLASHCARD].forEach((key) => {
             if (typeof response.data[key] === "string") {
                 try {
                     const parseData = JSON.parse(response.data[key]);